Choker-line for log-hauling cables.



} A. OPSAL.

OHQKER LINE FOR LOG HAULING GABLES.

APPLICATION FILED 00T.19, 1908.

917,738. Patented Apr. 6, 1909.

'U i ED s'rn'rns' PATENT OFFICE.

ANDREW OPSAL, OF PORTLAND, OREGON.

GHOKER-LINE FOR LOG-HAULIN G CABLES.

T 0 all whom. it may concern: 7 Be it known that I, ANDREW OPSAL, a citizen of the United States, and resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and useful. Improvement in Choker-Lines for Log-Hauling Cables, of which the following is a specification, reference being had to the accompanying drawings as constituting a part thereof.

. This invention relates to the short length of the cable, commonly called choker-line whichis fastened at one end to the main hauling-cable, and the other end thereof beingwrapped like a noose around the log to be hauled. The same contrivance is also used for many other kindred purposes.

In the general construction of the chokerline heretofore in use, the same consisted of a short'length of cable, made with an eye at one end, and provided with a slip-sleeve to which the other end of the choker-line is detachably fastened; and my invention concerns such fastening means.

The object of my invention is to provide inexpensive and durable means arranged to facilitate the rapid fastening and undoing of the noose-end of the choker-line at the same time so securely holding said end that it cannot accidentally become unfastened. And I obtain the latter effect by allowing the spring, or reflex of the noose-end of the choker-line to restrain the fastening means from becoming undone.

To this end my invention is arranged and comprises the features hereinafter fully described.

In the drawings: Figure 1 a perspective view of a choker-line providejd wlth my improved means for fastening the noose-end thereof, the parts being shown in the position they would appear in when in the act of fastenmg or unfastening the noose-end of the choker-line from the slip-sleeve; Fig. 2 is a plan or top view of the sllp-sleeve embodying my invention; and Fig. 3 is a plan section of the latter.

.main hauling line.

. The letters designate the parts referred to. The cable, a, is provided at one end with an eye I), for attachment to the butt hook of the On the cable, a-, is pro- -vided a slip-sleeve c, the ends 0 of which are madefiaring', as commonly done to prevent Specification of Letters Patent. Application filed October 19, 1908. Serial No. 458,515.

Patented April 6, 1909.

wear of the cable. Integrally made with the slip-sleeve c is a laterally projecting socketpiece d, the upper face of which is made with a slot e, so as to permit the insertion and removal of the noose-end a of the cable a, as illustrated in Fig. 1.' Said nooseend a is provided with a ferrule j, in which the extremity of the noose-end a, issecured by filling the eye of the ferrule f with babbitt, as usually done, and in order to allow am Is room for the babbitt, the ferrule f is pre erably made of conical form, thus providin a conical eye. The cavity g of the socket is made to conform to the exterior of the ferrule f; and near the outer end of the socket d I provide a shoulder h, upon which is seated the shoulder f of the ferrule f.

The making of the ferrule f of conical shape, as described, is merely a matter of convenience and not of essence to my invention, since the ferrule f is not designed to bind in the ta ering cavit g of the socket d, forthis woul revent t e convenient disengagement of t e parts; to the contrary the pulling strain of the noose-end a of the cable is entirely borne by the abutment of the shoulder f of the ferrule f, upon the-shoulder h of the socket (Z; and by this means the process of fastening and unfastening the noose-end a of the choker-line is rendered a convenient and rapid operation.

The spring inherent in the curved portioni of the choker-line operates to restrain the ferrule f from displacement; in other words, the partially encircling walls of the socket d, as evident, would prevent the ferrule from lifting out of lace, and the spring of the line ortion i orcibly draws and holds the shou der of the ferrule f aganist the interior shoulder of the socket d.

Incidentally the construction described also has this benefit: The shoulder 71; of the socket d virtually takes the entire strain or stress on the noose-end of the choker-line thereby relieving thesides of the socket d from a. transverse or lateral stress, which would be imposed thereon if the locking'of the ferrule f 1n place were to depend upon a wedge-like action in the slotted socket d.

The abutment of the shoulder f of the ferrule upon the shoulder h of the socket indeed prevents the ferrule from becoming wedged of the construction of the ferrule and its acilitates the rapid disengagement parts.

I clalm:

taperin socket 1. In a choker-line, thecombination of a.

cable provided with an enlargement at the extremity of the noose-end, a sleeve on the cable, a socket on the sleeve,and a shoulder on the interior of the socket arranged to encable, a ferrule affixed on the extremity of the noose-end thereof, said ferrule rovided with a bearing head, a sleeve on t e cable,

a socket on the sleeve, said socket being slotted to permit the insertion and removal of the noose-end, and a shoulder provided cable, a tapering ferrule aflixed on the eX- tremity of the noose-end thereof, said ferrule provided with a bearing head, a sleeve on the cable, a tapering socket on the sleeve, said socket being slotted to permit the insertion and removal of the noose-end, and a shoulder provided on thetinterior of the socket and arranged to serve as a bearing-for said ferrule on the noose-end, when the latter is inserted in said socket. ANDREW OPSAL.

l Vitnesses T. J. GEISLER,

CEoIL LONG. 

